Facile Synthesis of Nanoporous Carbons with High Surface Area and Their CO2 Adsorption Properties

The adsorption properties of two nanomorphologies of trititanate, nanotubes (TiNT) and plates (TiNP), prepared by the hydrothermal reaction of concentrated NaOH with different phases of TiO2, were examined. It was found that the capacity for both morphologies towards methylene blue (MB), an ideal pollutant, was extremely high, with the TiNP having a capacity of 130 mg/g, higher than the TiNT, whose capacity was 120 mg/g at 10 mg/L MB concentration. At capacity, the well-dispersed powders deposit on the floor of the reaction vessel. The two morphologies had very different structural and adsorption properties. TiNT with high surface area and pore volume exhibited exothermic monolayer adsorption of MB. TiNP with low surface area and pore volume yielded a higher adsorption capacity through endothermic multilayer adsorption governed by pore diffusion. TiNP exhibited a higher negative surface charge of −23 mV, compared to −12 mV for TiNT. The adsorption process appears to be an electrostatic interaction, with the cationic dye attracted more strongly to the nanoplates, resulting in a higher adsorption capacity and different adsorption modes. We believe this simple, low cost production of high capacity nanostructured adsorbent material has potential uses in wastewater treatment.

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CO2 Adsorption Property of Amine-Modified Amorphous TiO2 Nanoparticles with a High Surface Area

Colloids and Interfaces ◽

10.3390/colloids2030025 ◽

2018 ◽

Vol 2 (3) ◽

pp. 25 ◽

Cited By ~ 1

Author(s):

Misaki Ota ◽

Yuichiro Hirota ◽

Yoshiaki Uchida ◽

Norikazu Nishiyama

Keyword(s):

Tio2 Nanoparticles ◽

Surface Area ◽

Co2 Adsorption ◽

Adsorption Property ◽

High Surface ◽

High Surface Area ◽

Amorphous Tio2

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Impact of Micropores and Dopants to Mitigate Lithium Polysulfides Shuttle over High Surface Area of ZIF-8 Derived Nanoporous Carbons

ACS Applied Energy Materials ◽

10.1021/acsaem.0c00509 ◽

2020 ◽

Vol 3 (6) ◽

pp. 5523-5532 ◽

Cited By ~ 1

Author(s):

Masud Rana ◽

Jeonghun Kim ◽

Lingyi Peng ◽

Hyunsoo Lim ◽

Rejaul Kaiser ◽

...

Keyword(s):

Surface Area ◽

High Surface ◽

High Surface Area ◽

Nanoporous Carbons

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Large-scale and facile synthesis of a porous high-entropy alloy CrMnFeCoNi as an efficient catalyst

Journal of Materials Chemistry A ◽

10.1039/d0ta04940a ◽

2020 ◽

Vol 8 (35) ◽

pp. 18318-18326 ◽

Cited By ~ 1

Author(s):

Hailong Peng ◽

Yangcenzi Xie ◽

Zicheng Xie ◽

Yunfeng Wu ◽

Wenkun Zhu ◽

...

Keyword(s):

Catalytic Activity ◽

Surface Area ◽

Large Scale ◽

High Surface ◽

High Surface Area ◽

Catalytic Performance ◽

High Entropy Alloy ◽

Facile Synthesis ◽

Efficient Catalyst ◽

High Entropy

Porous high entropy alloy CrMnFeCoNi exhibited remarkable catalytic activity and stability toward p-nitrophenol hydrogenation. The enhanced catalytic performance not only resulted from the high surface area, but also from exposed high-index facets with terraces.

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